* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-weight: 400;
    box-sizing: border-box;
}
html {
    background: transparent url(../images/login.png) no-repeat left top fixed;
    background-size: cover;
}
.content-box {
    position: absolute;
    right: 8%;
    top: 50%;
    border-radius: 20px;
    width: 455px;
    height: 568px;
    transform: translateY(-50%);
    background: #fff url(../images/OIP-C.jpg) no-repeat bottom;
    
}
.content form{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
h2 {
    font-size: 30px;
}
h4 {
    font-size: 24px;
}
h4 , input[type=password] {
    margin: 30px 0;
}
.content form input{
    outline: none;
    border: 0;
    padding-left: 30px;
    background-color: #f6f4fc;
    border-radius: 10px;
    width: 376px;
    height: 48px;
    color: #606266;
    font-size: 16px;
}
.content form input[type=submit] {
    background-color: #1891ff;
    padding-left: 0;
    font-size: 16px;
    border-radius: 10px;
    color: #fff;
}
.content form input[type=submit]:hover {
    background-color: #dff0ff;
}
.content {
    position: relative;
}
.content a {
    position: absolute;
    right: 15px;
    top: 78%;
}
.content-box img {
    width: 164px;
    height: 164px;
    position: absolute;
    left: -131%;
    top: 27%;
}
.content form::after {
    content: "\e972";
    font-family: "icomoon";
    position: absolute;
    top: 44%;
    left: 46px;
    font-size: 18px;
}
.content form::before {
    content: "\e98f";
    font-family: "icomoon";
    position: absolute;
    top: 67%;
    left: 52px;
    font-size: 18px;
}
/* error */
.error-msg {
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    display: block;
    text-align: center;
    font-size: 20px;
    line-height: 50px;
    border-radius: 10px;
    background-color:rgb(236, 46, 46);
    width: 300px;
    height: 50px;
}